Fire-pot



(No Model;

JOSEPH SUHILL, JOHN SUHILL 83 PETBR SCHIL'L.

FIRE POT.

. Patented Jan.`12, 1892.

W oT 666 ea UNITED STATES PATENT OFFICE.

J OSEPH SOHILL, JOHN SCllILL, AND PETER SCHILL, OF CRESTLINE, OHIO F I R E P O T SPECIFICATION formng part of Letters Patent No. 466343, dated January 12, 1892.

Application filed March 9, 1891. Serial No. 384356. (N d l.) A

To all whom 't may' concern Be it known that we, JOSEPH SCHILL, JOHN SCHILL, and PETER SoHILL, citizens of the United States, residing in the city of Crestline, in the county of Crawford, in the State of Ohio, have invented a new and useful Fire- Pot, of which the following is a description.

The invention relates to a fire-pot or fuelchamber for stoves or for furnaces, of the kinds which are ordinarily employed for heating 'dwellings or other structures; and the peculiar Construction which has been adopted has been devised with aview to adapt the receptacle to the advantageous use of slack or other fine mineral fuel.

In the accompanying drawings, which constitute a part of this specification, Figure 1 represents a perspective elevation of the inner cylindrical section of the fire-pot or fuelreceptacle detached. Fig. 2 represents aplan View of the movable base-ring, which at the bottom closes the space between the inner and the outer concentric section. Fig. 3 is a perspective View, partly in vertical section, showing the inner and outer shells or cylinders of the fire-pot assembled for use; and Figs. 4, 5, (i, and 7 represent modifications which will be described.

As will be seen, the fire-pot A consists, es-

sentially, of the inner one-part section or oylinder A', which is provided with upper and lower series of perforations a' a', dac., and a (6 &c., respectively, and with a top outwardly and downwardly extending coveringfiange a, the outer one-part inperforate shell or cylinde1-A which may have a recess r in its lower extremity, and the closing-ring A which has vertical perforations (0 and a suitable operating-handle of.

As represented in Fig. 3, the space between the two cylinders or rings is covered by a tlange which is formed with and projects outwardly from the upper extremity of the inner cylindrical section; but, if desired, this fiange may be formed upon and extend inwardly from the upper extremity of the outer member instead, as in Fig. 4, and in some cases a detaohablc double-fianged ring-cap may be employed, as in Fig. 5.

In practice a suitable grate adapted to the dimensions of the fire-pot will be provided within or below the lower eXtrenity of the same, the grate and the fire-pot itself being supported above the ash-pit in any ordinary or preferred manner.

In some cases the recess r in the exterior section may be omitted and the handle or Operating-arm of the ring A may, as in Fig. 6, extend from the bottom surface of the closing-ring, instead of from its outer periphery.

Persons skilled in the art Will understand that the fire-pot sections will ordinarily be of metal, either cast or wrought. In some cases, as when the fuel-chanber is to be of unusually large dimensions, one or both of the sections may be formed in Vertical semicircular halves, subsequently united by lugs or ears and Secured by bolts. This Construction, while providing all the advantages of a onepart cylinder, presents an effectual safeguard against fracture of the sections through unequal expansion or contraction when in use.

In operation air from the ash-pit will be supplied through the vertical openings in the closing-ring, and when the recess r is provided through that opening also. Being thus admitted to the space between the two sections, it will be discharged through the openings or perforations a' and a into the mass of fuel within the body of the fire-pot. The openings a in the closing-ring being in coincidence with the perforations a' and a in the `slightly larger than those in the fire-pot, and

that 'as a consequence no bits of coal, slate, or clinker which may be discharged from the fuel-space can find permanent lodgment between the two shells. Slight to-and-fro movement of the handle a* of the closing-ring will suffice at any time to free the surface of the same from all accunulations ot' ashes or other dbris.

A fire-pot of the described Construction has been operated with marked advantage in consuming slack, the currents of air having the effect to prodnce &Looking action of this inferor fu el, which results in the thorough combuston and the complete utilization of all its valuable properties.

The invention having been thus described, what is claimed is-- 1. A fire-pot or fuel-chanber for domestic purposes, which consists, essentially, of an lnner metallic one-part perforated shell or cyhnder and an outer metaliic one-part imperforate plain shell or cylinder, the two shells embracing between them an air-chamber WhlCh is closed at its upper extrenity, sbstantiaily as set forth.

2. A fire-pot or fuel-chanber which embraces an inner cylindricztl or slig'htly-'tapered perforated one-part section and au onter imperfortte one-part section, the two sections ncl'osng an intermediate annular air-chamber, which is closed at its top by an inperforate coverngcap or flenge and which is closed at bottom by a ring which is provided With perforations.

fire-pot or fuel-cha'mber which conbnes an Inner performed one-part cylindril section, which has at its upper extremitv an ontwztrdly-extending flatnge, an outer ifi'perforate section, which, together with the inter'- vennger-space, is' cover'ed by the outwardlyextendng fiange of the inner perforztted secton, and a perforated olosing-ring between such 'sections at the lower extremity of the intervening ar-chamber.

4. fi `*e=pot or fuel-chanbi' which coin'- bnes an nner performed one-part cylindrical section, which has at its upper extremity an 'outwardly-extending fiange, an outer imperforate one-part cylindrical section, which, together with the intervening air-space, is covered by the outwardiy-extending flange of the inner perforated section, and a perforated reciprocating closing-ring between such inner and outer sections at the lower extremity of the intervening air-space.

5. The described fire-pot, consisting of the inner one-part fianged metallic cylindrical section A', having a series of perforations near its upper extremity and a series of perforations near its lower extremity, the outer on e-part plain cylindrical section A inclosing the inner section at a short distance therefrom, and the ring A provided with per'fo'ations a and Operating-arm (0 and located in the lower extremity of the annu'lar s ace between the two cylindrical sections, v

6. The described fi- -ponconssting of the inner one-part flang'ed nietallic cylindrical section A', having a horizontally-'arrtnged series of perforations near its up er nd near its lower extremity, the ont-er one-part plain cylindrical section A inciosingthe inner section at a short distance therefro'ni, and the ring A clos'ing 'the lowef extreinity of the spce between the two cylindric'tl sections and provided with perforations which are of g'reate" dimensions than the perform-was' in the body of the inner'cylindrical section, sib'- st'ztntially as and for the purposes set forth.

JOSEPH SCHILL. JOHN SCI-II-LL. PETER SCHILL.

Witriesses: I

' GEO. A. MUSSELMAN,

HENRY BERKERCHER. 

